After the compression the box starts moving at an initial velocity of $10\frac{m}{s}.$

i$.$ Find out the velocity of the block at the top of the inclined plane.

ii$.$ Calculate the difference between the speed of the block at point $\text{'}P\text{'}$ and $\text{'}Q\text{'}.$

iii. How much distance $\text{'}$d$\text{'}$ will the block be able to cover before stopping?